A triode has plate characteristics in the form of parallel lines in the region of our interest. At a grid voltage of −1 volt the anode current I (in milli amperes) is given in terms of plate voltage V (in volts) by the algebraic relation :I=0.125V−7.5For grid voltage of −3 volts, the current at anode voltage of 300 volts is 5 milliampere. Determine the plate resistance ( rp ), transconductance ( gm ) and the amplification factor ( μ ) for the triode.